Directed Palladium-Catalyzed Acetoxylation of Indolines. Total Synthesis of N-Benzoylcylindrocarine.

Directed Palladium-Catalyzed Acetoxylation of Indolines. Total Synthesis of N-Benzoylcylindrocarine.
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DOI:
10.1021/acs.joc.1c02811
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发表时间:
2022-03-04
影响因子:
3.6
通讯作者:
Movassaghi, Mohammad
Movassaghi, Mohammad
中科院分区:
化学2区
文献类型:
--
作者:
Flynn, Kristen M.;White, Kolby L.;Movassaghi, Mohammad

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We describe a palladium catalyzed C7-acetoxylation of indolines with a range of amide directing groups. While a variety of substituents are tolerated on the indoline-core and the N1-acyl group, the acetoxylation is most sensitive to the C2- and C6-indoline substituents. The practicality of this indoline C7-acetoxylation is demonstrated using a cinnamamide substrate on mmol-scale. Several N1-acyl groups, including those present in natural alkaloids, guide C7-acetoxylation of indoline substrates over a competitive C5-oxidation. The application of this chemistry allowed for the first synthesis of N-benzoylcylindrocarine by late-stage C17-acetoxylation of N-benzoylfendleridine.
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发表时间: 1973-01-01
期刊: ACTA CHEMICA SCANDINAVICA
影响因子: --
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